In his position, Petzel oversaw what officials say is the largest health care delivery system in the U.S. The VA operates 1,700 hospitals, clinics and other facilities around the country, serving about 6.5 million veterans and other beneficiaries each year.
Miller, who wrote the legislation that the House will take up next week, said Congress must act, because the VA is "apparently unwilling to take substantive actions to hold any of its leaders accountable."
Shinseki on Thursday told senators he was "mad as hell" about allegations of severe problems and that he was looking for quick results from a nationwide audit. He has rejected calls for him to resign.